# CVE-2023-42431: Potential XSS on user preferences page

> A logged-in user can inject arbitrary HTML into the profile image dialog, potentially executing scripts in other users' browsers.

- **Severity:** Low 2.1 (`CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 Oct 2023
- **Updated:** 6 Sep 2024
- **Also known as:** GHSA-wh3j-5jfr-mvrv

## What is CVE-2023-42431?

CVE-2023-42431 is a low-severity cross-site scripting vulnerability in Hallo Welt! GmbH BlueSpice, published on 30 Oct 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Cross-site Scripting (XSS) vulnerability in BlueSpiceAvatars extension of BlueSpice allows logged in user to inject arbitrary HTML into the profile image dialog on Special:Preferences. This only applies to the genuine user context.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation), CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2023-42431?

It affects 1 product.


Products: Hallowelt Bluespice.

## How do I fix CVE-2023-42431?

No fix has been published for CVE-2023-42431 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-42431 being exploited?

There is no known exploitation of CVE-2023-42431 in the wild and no public exploit code.

## Other vulnerabilities in Hallo Welt! GmbH BlueSpice

- [CVE-2025-46703](https://insights.sbomify.com/CVE-2025-46703/): Potential XSS in Extension:AtMentions (medium 5.9)
- [CVE-2025-48007](https://insights.sbomify.com/CVE-2025-48007/): Potential XSS in Extension:BlueSpiceAvatars (medium 5.9)
- [CVE-2025-57880](https://insights.sbomify.com/CVE-2025-57880/): Potential XSS in Extension:BlueSpiceWhoIsOnline (medium 5.9)
- [CVE-2025-58114](https://insights.sbomify.com/CVE-2025-58114/): Potential XSS in Extension:CognitiveProcessDesigner (medium 5.9)
- [CVE-2022-2510](https://insights.sbomify.com/CVE-2022-2510/): Potential XSS on Special:SearchCenter (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-42431 and fix it if it is affected.

What it is: CVE-2023-42431 is a low-severity cross-site scripting vulnerability in Hallo Welt! GmbH BlueSpice, published on 30 Oct 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-42431 in the wild and no public exploit code.

Affected product: Hallo Welt! GmbH BlueSpice. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-42431/ (Markdown: https://insights.sbomify.com/CVE-2023-42431/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-42431
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-42431
- OSV: https://osv.dev/vulnerability/CVE-2023-42431

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-42431/
Summaries are generated and may contain mistakes; the official description above is the record.